Very unstable, the browser is crashing frequently in sgementation faults

[0x090909]

Is there a stable build of lightpanda? I cannot seem to make it work continually as it crashes every 2 3 attempts of scraping.

[0x090909]

Bus error at address 0x29f91e363d4b74c3

???:?:?: 0xffff1e363d4b74c3 in ??? (???)

Unwind information for ???:0xffff1e363d4b74c3 was not available, trace may be incomplete

/home/runner/work/browser/browser/src/browser/netsurf.zig:791:55: 0x248c49f in documentIsComplete (lightpanda)

/home/runner/work/browser/browser/src/browser/ScriptManager.zig:505:32: 0x251611b in evaluate (lightpanda)

/home/runner/work/browser/browser/src/browser/ScriptManager.zig:426:18: 0x24924fb in pageDoneCallback (lightpanda)

/home/runner/work/browser/browser/src/http/Client.zig:516:39: 0x2485b03 in processMessages (lightpanda)

/home/runner/work/browser/browser/src/http/Client.zig:443:33: 0x24883d3 in perform (lightpanda)

/home/runner/work/browser/browser/src/http/Client.zig:198:24: 0x24a1ba7 in tick (lightpanda)

/home/runner/work/browser/browser/src/browser/page.zig:340:45: 0x24ccf7b in wait (lightpanda)

/home/runner/work/browser/browser/src/browser/session.zig:165:29: 0x246e49f in run (lightpanda)

/home/runner/work/browser/browser/src/main.zig:124:23: 0x2499fe3 in run (lightpanda)

/home/runner/work/browser/browser/src/main.zig:50:8: 0x249d887 in main (lightpanda)

???:?:?: 0xffff92e3229b in ??? (libc.so.6)

???:?:?: 0x71ffff92e3237b in ??? (???)

???:?:?: 0x6000000223a02f in ??? (???)

$time=3029847 $scope=telemetry $level=info $msg="telemetry status" disabled=false

$time=3029847 $scope=app $level=info $msg="server running" address=0.0.0.0:9222

[0x090909]

Segmentation fault at address 0x10

???:?:?: 0x3e55ac0 in ??? (???)

/home/runner/work/browser/browser/src/browser/netsurf.zig:900:49: 0x24c7ae7 in documentIsLoaded (lightpanda)

Unwind error at address :0x24c7ae7 (error.InvalidRegister), trace may be incomplete

/home/runner/work/browser/browser/src/browser/ScriptManager.zig:500:26: 0x251610b in evaluate (lightpanda)

/home/runner/work/browser/browser/src/browser/ScriptManager.zig:426:18: 0x24924fb in pageDoneCallback (lightpanda)

/home/runner/work/browser/browser/src/http/Client.zig:516:39: 0x2485b03 in processMessages (lightpanda)

/home/runner/work/browser/browser/src/http/Client.zig:443:33: 0x24883d3 in perform (lightpanda)

/home/runner/work/browser/browser/src/http/Client.zig:198:24: 0x24a1ba7 in tick (lightpanda)

/home/runner/work/browser/browser/src/browser/page.zig:414:49: 0x24ccfb7 in wait (lightpanda)

/home/runner/work/browser/browser/src/browser/session.zig:165:29: 0x246e49f in run (lightpanda)

/home/runner/work/browser/browser/src/main.zig:124:23: 0x2499fe3 in run (lightpanda)

/home/runner/work/browser/browser/src/main.zig:50:8: 0x249d887 in main (lightpanda)

???:?:?: 0xffff8ad7229b in ??? (libc.so.6)

???:?:?: 0x2cffff8ad7237b in ??? (???)

???:?:?: 0x2f00000223a02f in ??? (???)

[0x090909]

same page sometimes it works some times it makes the browser fault

[krichprollsch]

Hello @0x090909,
Thanks for your issue.
In order to understand a bit more where the issue comes from, can you share more about the usage generating the crash?
Which CDP client do you use? Which page do you call?

[0x090909]

Ive been trying with some of my own websites made in sveltekit, and the pattern I noticed from the stacktraces are as follows:

Page loads apparently with no problems, as the script engine I guess v8 you're using is reading the scripts in the page, it seg faults while executing page scripts.

[krichprollsch]

@0x090909 Would you like to retry with the last version of the browser please?
We did a important change last week, I'm curious to know if it makes improvements in your case.
Thanks

[krichprollsch]

@0x090909 did you have a chance to retry with last nightly build?
Or if you can share an URL to let us reproduce, that would be nice.

[0x090909]

Will try again and let you know Feb 4, 2026 10:49:20 Pierre Tachoire ***@***.***>:

…

[Image]*krichprollsch* left a comment (lightpanda-io/browser#1304)[#1304 (comment)] @0x090909[https://github.com/0x090909] did you have a chance to retry with last nightly build? Or if you can share an URL to let us reproduce, that would be nice. — Reply to this email directly, view it on GitHub[#1304 (comment)], or unsubscribe[https://github.com/notifications/unsubscribe-auth/AEBESU3YNHOZPCWCDRMIDUL4KG6CBAVCNFSM6AAAAACQHL3HEOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTQNBWGQYTCMZQGU]. You are receiving this because you were mentioned. [Tracking image][https://github.com/notifications/beacon/AEBESUYAVMB4NFOFWRTGWVT4KG6CBA5CNFSM6AAAAACQHL3HEOWGG33NNVSW45C7OR4XAZNMJFZXG5LFINXW23LFNZ2KUY3PNVWWK3TUL5UWJTXFIOKCS.gif]